1122021121111 has 8 divisors (see below), whose sum is σ = 1236142082448. Its totient is φ = 1009920000000.

The previous prime is 1122021121093. The next prime is 1122021121153. The reversal of 1122021121111 is 1111211202211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122021121111 - 2¹⁵ = 1122021088343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122021121171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504958890 + ... + 504961111.

It is an arithmetic number, because the mean of its divisors is an integer number (154517760306).

Almost surely, 2^{1122021121111} is an apocalyptic number.

1122021121111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1122021121111 is a deficient number, since it is larger than the sum of its proper divisors (114120961337).

1122021121111 is a wasteful number, since it uses less digits than its factorization.

1122021121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009920113.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1122021121111 its reverse (1111211202211), we get a palindrome (2233232323322).

The spelling of 1122021121111 in words is "one trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, one hundred eleven".